An established human and animal rights foundation moved from temporary offices to a permanent location on the top floor of an industrial building. Our mandate from the client was to create an energy efficient, sustainable office space. Four huge skylights, plus windows on all four exposures, flood the space with light. A film applied to the skylights and south windows reduces glare and heat transfer and allows uncompromised views of the cityscape. The film also reduces the amount of cooling needed in summer while maximizing the amount of natural light. Sensors in the daylighting control system dim the energy efficient light fixtures in response to the amount of available ambient natural light, saving energy. Low, open-office furniture, located under the skylights, enables the staff to collaborate and takes advantage of the open loft space. Enclosed offices along windows have glass walls to transmit daylight and offer views of the exterior to the open interior areas. Materials and finishes were selected to maintain as green an environment as possible.